Sam Steingard, of Germantown, had never intended to bring a date to last year's prom, his sister Caroline told InsideEdition.com.

"My brother refused to get a date to prom," Caroline, 20, told InsideEdition.com. "He refused to ask anybody out, so my mom said, 'If you're not going to do that, I'm going to make you take pictures with the cat.'"

But their mom never expected the image to go viral a year later, when Caroline uploaded them to Imgur earlier this week.

Caroline said that her mom even went and bought Ruby a dress, shoes and a sparkly pink collar for Sam's lucky lady.

Though her brother was reluctant to take the picture when the moment arrived, Caroline told InsideEdition.com that "she happened to be looking at him lovingly," and it clearly dispelled all her brother's doubts.